Add support for the object-position CSS property.

Source/core/rendering/style/StyleRareNonInheritedData.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef StyleRareNonInheritedData_h
 #define StyleRareNonInheritedData_h
 
+#include "core/platform/LengthPoint.h"
 #include "core/rendering/ClipPathOperation.h"
 #include "core/rendering/style/BasicShapes.h"
 #include "core/rendering/style/CounterDirectives.h"
 #include "core/rendering/style/CursorData.h"
 #include "core/rendering/style/DataRef.h"
 #include "core/rendering/style/FillLayer.h"
 #include "core/rendering/style/LineClampValue.h"
 #include "core/rendering/style/NinePieceImage.h"
 #include "core/rendering/style/ShapeValue.h"
 #include "wtf/OwnPtr.h"
@@ skipping 98 matching lines @@
     Color m_visitedLinkTextDecorationColor;
     Color m_visitedLinkBackgroundColor;
     Color m_visitedLinkOutlineColor;
     Color m_visitedLinkBorderLeftColor;
     Color m_visitedLinkBorderRightColor;
     Color m_visitedLinkBorderTopColor;
     Color m_visitedLinkBorderBottomColor;
 
     int m_order;
 
+    LengthPoint m_objectPosition;
+
     AtomicString m_flowThread;
     AtomicString m_regionThread;
     unsigned m_regionFragment : 1; // RegionFragment
 
     unsigned m_regionBreakAfter : 2; // EPageBreak
     unsigned m_regionBreakBefore : 2; // EPageBreak
     unsigned m_regionBreakInside : 2; // EPageBreak
 
     unsigned m_pageSizeType : 2; // PageSizeType
     unsigned m_transformStyle3D : 1; // ETransformStyle3D
@@ skipping 29 matching lines @@
     unsigned m_isolation : 1; // Isolation
 
 private:
     StyleRareNonInheritedData();
     StyleRareNonInheritedData(const StyleRareNonInheritedData&);
 };
 
 } // namespace WebCore
 
 #endif // StyleRareNonInheritedData_h